Returns what happened to the host's bookings since fromDate: one entry per change, with the booking code and the activity type. Use this to sync bookings: poll it with the time of your last successful poll, then fetch each booking with GET /bookings/{bookingCode}.

Activity types:

• InstantBooked: the guest booked and paid, and the booking is confirmed.
• Requested: Instant Book is off for the listing, the guest paid, and the host must approve or decline.
• Approved: the host approved a request.
• Declined: the host declined a request.
• Cancelled: the guest or host cancelled the booking.

fromDate must be no more than 10 days ago.